SnagIt v13 end of life

We currently have the latest update for V13. However, we just received the maintenance contract for 2018. We are deciding whether or not we should upgrade our SnagIt environment. Is there ever a worry that TechSmith will stop patching V13? I know we want to go to 2018 but I would like to be more informed about the update and support process for the previous version as we wait a little longer for 2018 to iron itself out.